On Mon 07 Nov 00:44 PST 2016, Linus Walleij wrote:
> This adds the MPU-3050 gyroscope and the KXSD9 accelerometer to
> the Qualcomm APQ8060 Dragonboard. The KXSD9 is mounted beyond the
> MPU-3050 and appear as a subdevice beyond it. We set up the
> required GPIO and interrupt lines to make the devices work.
>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
> ChangeLog v3->v4:
> - Use interrupts-extended
> - Add Bjorn's ACK.
Looks like it didn't make it to the message after all, but Andy is using
patchworks, so here we go again :)
Acked-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> ChangeLog v2->v3:
> - Move the interrupt to the pm8058 alias to reflect the two patches
> properly specifying the PMIC as interrupt parent.
> ChangeLog v1->v2:
> - Use the new I2C mux gate bindings from Peter Rosin (merged to
> the I2C subsystem)
> ---
> arch/arm/boot/dts/qcom-apq8060-dragonboard.dts | 52 ++++++++++++++++++++++++++
> 1 file changed, 52 insertions(+)
>
> diff --git a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
> index ea660ffa03ea..39d9e6ddefed 100644
> --- a/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
> +++ b/arch/arm/boot/dts/qcom-apq8060-dragonboard.dts
> @@ -220,6 +220,14 @@
> function = "ebi2";
> };
> };
> +
> + /* Interrupt line for the KXSD9 accelerometer */
> + dragon_kxsd9_gpios: kxsd9 {
> + irq {
> + pins = "gpio57"; /* IRQ line */
> + bias-pull-up;
> + };
> + };
> };
>
> qcom,ssbi@500000 {
> @@ -272,6 +280,15 @@
> power-source = <PM8058_GPIO_S3>;
> };
> };
> + dragon_mpu3050_gpios: mpu3050-gpios {
> + pinconf {
> + pins = "gpio17";
> + function = "normal";
> + input-enable;
> + bias-disable;
> + power-source = <PM8058_GPIO_S3>;
> + };
> + };
> dragon_sdcc3_gpios: sdcc3-gpios {
> pinconf {
> pins = "gpio22";
> @@ -389,6 +406,41 @@
> vddd-supply = <&pm8058_lvs0>; // 1.8V
> vdda-supply = <&pm8058_l14>; // 2.85V
> };
> + mpu3050@68 {
> + compatible = "invensense,mpu3050";
> + reg = <0x68>;
> + /*
> + * GPIO17 has interrupt 208 on the
> + * PM8058, it is pulled high by a 10k
> + * resistor to VLOGIC so needs to be
> + * active low/falling edge.
> + */
> + interrupts-extended = <&pm8058 208 IRQ_TYPE_EDGE_FALLING>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&dragon_mpu3050_gpios>;
> + vlogic-supply = <&pm8058_lvs0>; // 1.8V
> + vdd-supply = <&pm8058_l14>; // 2.85V
> +
> + /*
> + * The MPU-3050 acts as a hub for the
> + * accelerometer.
> + */
> + i2c-gate {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + kxsd9@18 {
> + compatible = "kionix,kxsd9";
> + reg = <0x18>;
> + interrupt-parent = <&tlmm>;
> + interrupts = <57 IRQ_TYPE_EDGE_FALLING>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&dragon_kxsd9_gpios>;
> + iovdd-supply = <&pm8058_lvs0>; // 1.8V
> + vdd-supply = <&pm8058_l14>; // 2.85V
> + };
> + };
> + };
> };
> };
>
> --
> 2.7.4
>
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